CCRL 40/15
Downloads and Statistics
February 20, 2021
Testing summary:
Total: 1'218'554 games
played by 2'788 programs

White wins: 418'779 (34.4%)
Black wins: 308'204 (25.3%)
Draws: 491'571 (40.3%)
White score: 54.5%

Custom engine selection

Comparing 9 engines!
9 selected engines played 0 games with each other

CCRL 40/15 Rating List — Custom engine selection (Quote)

Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Computed on February 20, 2021 with Bayeselo based on 1'218'554 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1Isa 2.0.83 64-bit2380+24−2452.1%−17.525.7%614 
86.6%
 Isa 2.0.64 64-bit2364+16−1652.6%−20.227.3%1415
77.8%
 Isa 2.1 64-bit2351+28−2851.2%−13.024.8%456
93.5%
 Isa 2.0.61 64-bit2319+30−3050.0%−3.927.9%383
98.8%
 Isa 2.0.48 64-bit2270+30−3050.5%−4.433.5%373
67.6%
 Isa 2.0.45 64-bit2261+28−2849.6%+1.028.9%450
93.8%
 Isa 1.9.68 64-bit2229+30−3050.0%+1.827.8%374
98.3%
 Isa 1.9.63 64-bit2185+26−2744.6%+37.228.9%501
73.5%
 Isa 1.9.51 64-bit2173+27−2752.5%−19.524.0%496
 

Results matrix

Custom engine selection
#NameElo123456789
1Isa 2.0.83 64-bit2380         
2Isa 2.0.64 64-bit2364         
3Isa 2.1 64-bit2351         
4Isa 2.0.61 64-bit2319         
5Isa 2.0.48 64-bit2270         
6Isa 2.0.45 64-bit2261         
7Isa 1.9.68 64-bit2229         
8Isa 1.9.63 64-bit2185         
9Isa 1.9.51 64-bit2173         
Performance color legend:
(Only pairs with at least 30 games)
-120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120

LOS matrix

Custom engine selection
#NameElo123456789
1Isa 2.0.83 64-bit2380 86.693.999.9100.0100.0100.0100.0100.0
2Isa 2.0.64 64-bit236413.4 77.899.5100.0100.0100.0100.0100.0
3Isa 2.1 64-bit23516.122.2 93.5100.0100.0100.0100.0100.0
4Isa 2.0.61 64-bit23190.10.56.5 98.899.7100.0100.0100.0
5Isa 2.0.48 64-bit22700.00.00.01.2 67.697.3100.0100.0
6Isa 2.0.45 64-bit22610.00.00.00.332.4 93.8100.0100.0
7Isa 1.9.68 64-bit22290.00.00.00.02.76.2 98.399.6
8Isa 1.9.63 64-bit21850.00.00.00.00.00.01.7 73.5
9Isa 1.9.51 64-bit21730.00.00.00.00.00.00.426.5 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Number of connecting games matrix

Custom engine selection
#NameElo123456789
1Isa 2.0.83 64-bit2380 58442170687218624
2Isa 2.0.64 64-bit2364584 416367325315146166128
3Isa 2.1 64-bit2351421416 23223322117915752
4Isa 2.0.61 64-bit231970367232 36041025227756
5Isa 2.0.48 64-bit227068325233360 49135324096
6Isa 2.0.45 64-bit226172315221410491 526407188
7Isa 1.9.68 64-bit222918146179252353526 419230
8Isa 1.9.63 64-bit21856166157277240407419 319
9Isa 1.9.51 64-bit217324128525696188230319 
Number of connecting games color legend:
0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000

Percentage of connecting games matrix

Custom engine selection
#NameElo123456789
1Isa 2.0.83 64-bit2380 28.839.37.06.96.81.80.52.2
2Isa 2.0.64 64-bit236428.8 22.220.418.216.98.28.76.7
3Isa 2.1 64-bit235139.322.2 27.728.124.421.616.45.5
4Isa 2.0.61 64-bit23197.020.427.7 47.649.233.331.36.4
5Isa 2.0.48 64-bit22706.918.228.147.6 59.747.327.511.0
6Isa 2.0.45 64-bit22616.816.924.449.259.7 63.842.819.9
7Isa 1.9.68 64-bit22291.88.221.633.347.363.8 47.926.4
8Isa 1.9.63 64-bit21850.58.716.431.327.542.847.9 32.0
9Isa 1.9.51 64-bit21732.26.75.56.411.019.926.432.0 
Percentage of connecting games color legend:
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Score with 136 common opponents

Custom engine selection
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Axolotl 1.9 64-bit2527 35%
3.5/10
0%
0/1
      
Delphil 3.2 64-bit2496  42%
2.5/6
0%
0/1
     
Pepito 1.59.2 64-bit2495 62%
2.5/4
8%
0.5/6
      
MadChess 2.2 64-bit2493 25%
1/4
50%
3/6
      
Jumbo 0.6.10 64-bit2483 0%
0/4
 38%
1.5/4
     
Drosophila 1.5.1 64-bit247938%
1.5/4
50%
7/14
       
Raven 0.90 64-bit2469 31%
2.5/8
0%
0/4
      
Bumblebee 1.0 64-bit2466 25%
1/4
17%
1/6
      
Nemeton 1.812464100%
2/2
 33%
2/6
      
Nemeton 1.512453       15%
1.5/10
8%
0.5/6
Orion 0.4 64-bit2452 62%
2.5/4
 62%
2.5/4
     
Bumblebee 1.0.36898e1 64-bit244788%
3.5/4
  25%
1/4
 38%
1.5/4
   
Stash 18.0 64-bit244750%
1/2
50%
5/10
       
Shallow r694 64-bit2443 75%
3/4
 38%
1.5/4
 0%
0/4
   
Bearded N44.5 64-bit2441 25%
2/8
  5%
0.5/10
    
Teki 2 64-bit244050%
6/12
52%
16.5/32
       
Tunguska 1.1 64-bit243836%
10/28
35%
3.5/10
       
Cmcchess 2.6 64-bit242225%
0.5/2
25%
1/4
       
Kiwi 0.6d 32-bit2421 62%
2.5/4
 33%
2/6
     
Monolith 0.3 64-bit2417 83%
2.5/3
 38%
1.5/4
38%
1.5/4
    
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Gaia 3.5 64-bit241662%
2.5/4
62%
2.5/4
25%
1.5/6
42%
2.5/6
     
RomiChess P3n 64-bit241453%
9.5/18
58%
11.5/20
75%
3/4
50%
2/4
20%
2/10
    
Ares 1.005.2 64-bit2412 17%
0.5/3
   12%
0.5/4
   
Hedgehog 2.0 64-bit240743%
9.5/22
 25%
1/4
      
Gosu 0.162402 14%
1/7
 50%
3/6
     
Simplex 0.9.8 64-bit240138%
1.5/4
38%
1.5/4
 25%
1.5/6
     
KnightDreamer 3.3239730%
3/10
38%
1.5/4
50%
3/6
      
Myrddin 0.87 64-bit239752%
10.5/20
18%
3.5/19
44%
7/16
  40%
4/10
   
Patzer 3.802397 12%
0.5/4
17%
1/6
      
Popochin 4.1 64-bit239638%
4.5/12
40%
9.5/24
75%
1.5/2
      
Amateur 2.822395  33%
2/6
42%
2.5/6
     
Alex 2.14a 64-bit2393 75%
3/4
 33%
2/6
     
Ares GB 64-bit239246%
6.5/14
45%
24.5/54
25%
1/4
      
CT800 1.40 64-bit239253%
9.5/18
 50%
2/4
      
Zevra 2.1.2 r248 64-bit239059%
16.5/28
55%
5.5/10
33%
4/12
      
Ares GB 1.1 64-bit238840%
10.5/26
56%
4.5/8
       
Galjoen 0.39 64-bit238745%
4.5/10
23%
3/13
       
Googleplex Starthinker 1.6 64-bit238743%
12/28
70%
7/10
41%
11.5/28
      
Tytan 9.32384 25%
1/4
33%
2/6
      
Thor's Hammer 2.28 32-bit238350%
1/2
12%
0.5/4
       
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Zevra 2.1.1 r216 64-bit238055%
5.5/10
46%
5.5/12
       
Waxman 20162379   38%
1.5/4
 62%
2.5/4
   
OliThink 5.3.2 64-bit2374 75%
3/4
  25%
2.5/10
40%
4/10
   
Waxman 2017237146%
5.5/12
48%
11.5/24
       
Raven 0.80 64-bit236950%
1/2
 25%
1.5/6
      
Plisk 0.2.7d 64-bit236350%
1/2
47%
7/15
25%
1.5/6
 55%
5.5/10
    
KnightX 1.94 64-bit235275%
3/4
54%
18.5/34
       
Barbarossa 0.6.0 64-bit234953%
27.5/52
 50%
9/18
      
Jazz 840 64-bit234062%
2.5/4
50%
6/12
       
Aice 0.99.22338 62%
2.5/4
 83%
5/6
 55%
5.5/10
   
Napoleon 1.8 64-bit233838%
1.5/4
50%
6/12
       
Gibbon 2.60a 64-bit2337 44%
3.5/8
67%
4/6
      
Asterisk 0.62332 62%
5/8
 75%
4.5/6
     
FireFly 2.7.2 64-bit232935%
3.5/10
66%
21/32
67%
8/12
55%
5.5/10
39%
5.5/14
17%
1/6
   
Amundsen 0.802328 58%
7/12
 50%
3/6
50%
5/10
    
Zeus 1.272326 50%
2/4
42%
2.5/6
      
Chezzz 1.0.32323 33%
4/12
 50%
3/6
     
EveAnn 1.72232050%
3/6
60%
21/35
100%
1/1
50%
2/4
50%
2/4
46%
5.5/12
29%
4/14
  
Gibbon 2.69a 64-bit2320 38%
1.5/4
  40%
4/10
33%
4/12
39%
5.5/14
30%
3/10
25%
2/8
Googleplex Starthinker 1.4 64-bit232042%
2.5/6
57%
16/28
       
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
EveAnn 1.71a2318 88%
3.5/4
 42%
2.5/6
     
KnightX 1.922317 58%
7/12
 33%
2/6
40%
4/10
45%
4.5/10
 35%
3.5/10
 
Asymptote 0.2.0 64-bit2315 50%
19.5/39
 25%
1.5/6
     
Averno 0.812314 46%
5.5/12
 33%
2/6
50%
5/10
40%
4/10
25%
2.5/10
55%
5.5/10
 
Mediocre 0.42314  67%
4/6
67%
4/6
     
Nemeton 1.22309       20%
2/10
44%
3.5/8
Anechka 0.082302    50%
5/10
30%
3/10
25%
2.5/10
35%
3.5/10
 
Ant 2006-F2302 54%
6.5/12
50%
3/6
58%
3.5/6
 80%
8/10
20%
2/10
  
Joker 1.1.142302 38%
3/8
67%
4/6
42%
2.5/6
50%
2/4
0%
0/2
62%
2.5/4
  
RubiChess 0.7 64-bit2302 58%
7/12
50%
3/6
    75%
4.5/6
 
Fischerle 0.9.80 SE 64-bit2300   58%
3.5/6
38%
6/16
31%
5/16
36%
5/14
  
Schooner 1.5 64-bit2300      45%
4.5/10
25%
3.5/14
31%
2.5/8
Natwarlal 0.142299 62%
2.5/4
 58%
10.5/18
 40%
4/10
 15%
1.5/10
 
Absolute Zero 2.4.7.2 64-bit2297 62%
2.5/4
42%
2.5/6
50%
5/10
12%
0.5/4
25%
2/8
53%
9.5/18
25%
3.5/14
25%
2/8
CT800 1.34 64-bit229650%
2/4
56%
4.5/8
100%
2/2
      
Fischerle 0.9.70 SE 64-bit2296 50%
2/4
     25%
1/4
56%
4.5/8
Invictus r228 64-bit229275%
3/4
54%
7.5/14
       
Matilde 2008 64-bit2290 75%
3/4
92%
5.5/6
58%
3.5/6
40%
4/10
45%
4.5/10
39%
5.5/14
25%
2.5/10
 
Chaturanga 2.4.32289 88%
7/8
 58%
3.5/6
 70%
7/10
 20%
2/10
 
Bearded N44.2 64-bit2287     38%
1.5/4
38%
1.5/4
43%
6/14
 
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
FireFly 2.7.0 64-bit2287    50%
0.5/1
29%
3.5/12
46%
6.5/14
43%
6/14
 
Galjoen 0.38 64-bit2284 59%
9.5/16
     12%
0.5/4
38%
1.5/4
AliChess 4.252283 75%
6/8
67%
4/6
      
Chispa 4.0.32274 88%
3.5/4
33%
2/6
50%
3/6
 35%
3.5/10
35%
3.5/10
45%
4.5/10
 
CeeChess 1.3.2 64-bit226879%
20.5/26
 80%
8/10
      
Ayito 0.2.9942267  75%
4.5/6
50%
3/6
55%
5.5/10
  35%
3.5/10
 
CT800 1.30 64-bit2257 54%
7.5/14
50%
3/6
     39%
5.5/14
Protej 0.5.8c2257   83%
5/6
 25%
0.5/2
 50%
5/10
 
RattateChess 1.0 Nosferatu2253  75%
4.5/6
75%
4.5/6
45%
4.5/10
 45%
4.5/10
  
Absolute Zero 3.3.2.0 64-bit225257%
8/14
 58%
3.5/6
      
Exacto 0.e 64-bit2252   42%
2.5/6
70%
7/10
  50%
5/10
 
Beowulf 2.4a 64-bit2250   42%
2.5/6
55%
5.5/10
55%
5.5/10
   
Lozza 1.14a 64-bit2247       39%
3.5/9
19%
1.5/8
Mango Paola Ajedrez 4.12246  92%
5.5/6
  50%
1/2
40%
4/10
50%
5/10
 
Atak 6.82238  33%
2/6
67%
4/6
   45%
4.5/10
 
Buzz 0.08 64-bit2235   33%
2/6
50%
5/10
40%
4/10
50%
5/10
  
RamJet 0.132235  50%
3/6
67%
4/6
38%
1.5/4
68%
9.5/14
53%
9.5/18
62%
2.5/4
0%
0/2
Dolphin 1.0 64-bit2231  67%
4/6
67%
4/6
40%
4/10
35%
3.5/10
 39%
3.5/9
 
SpaceDog 0.97.7 64-bit223070%
7/10
 62%
7.5/12
      
Tiny Chess 1.46 64-bit2224 78%
7/9
100%
6/6
67%
4/6
72%
11.5/16
64%
9/14
   
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Robocide 20170718 64-bit2221 62%
5/8
  70%
7/10
   31%
2.5/8
Uralochka 1.1b2218  58%
3.5/6
 45%
4.5/10
 70%
7/10
70%
7/10
 
CT800 1.12 64-bit2217 62%
2.5/4
  100%
2/2
    
Joker2 0.7.7 64-bit2215 69%
5.5/8
      62%
5/8
OBender 03.2016 64-bit2215   42%
2.5/6
54%
6.5/12
50%
9/18
46%
6.5/14
39%
5.5/14
31%
5.5/18
ChessKISS 1.7c 64-bit2214     82%
11.5/14
50%
5/10
 50%
9/18
Neurosis 2.32213  83%
5/6
 45%
4.5/10
55%
5.5/10
   
Adam 3.32211  67%
4/6
58%
3.5/6
55%
5.5/10
35%
3.5/10
65%
6.5/10
  
Napoleon 1.6.0b 64-bit2208       61%
8.5/14
50%
1/2
Latista (Sinobyl) 1.52206  50%
3/6
67%
4/6
75%
7.5/10
45%
4.5/10
30%
3/10
  
Baislicka 1.0 64-bit2205 62%
5/8
  67%
4/6
54%
6.5/12
   
ChessAlex 2.0r42203   75%
4.5/6
   80%
8/10
 
Achillees 1.0 64-bit219975%
13.5/18
 83%
5/6
      
Dorpsgek Dillinger 64-bit2194   75%
4.5/6
67%
4/6
57%
8/14
   
NG-Play 9.85 64-bit2191    65%
6.5/10
 60%
6/10
  
GopherCheck 0.2.3 64-bit2190   75%
4.5/6
72%
11.5/16
54%
7.5/14
61%
8.5/14
25%
0.5/2
 
NG-Play 9.87 64-bit2190     83%
5/6
75%
3/4
88%
3.5/4
50%
5/10
Zevra 1.8.2 r612 64-bit2189 75%
3/4
      50%
2/4
NagaSkaki 5.122187     65%
6.5/10
50%
5/10
30%
3/10
 
MORA 1.1.0218375%
3/4
 92%
5.5/6
     50%
4/8
NameEloIsa
2.0.83
64-bit
Isa
2.0.64
64-bit
Isa
2.1
64-bit
Isa
2.0.61
64-bit
Isa
2.0.48
64-bit
Isa
2.0.45
64-bit
Isa
1.9.68
64-bit
Isa
1.9.63
64-bit
Isa
1.9.51
64-bit
Lime 662182      45%
4.5/10
68%
7.5/11
 
NG-Play 9.87b 64-bit2182 100%
4/4
  100%
2/2
    
Soldat III 0.187 64-bit2178    17%
1/6
62%
7.5/12
   
Clever Girl r185 64-bit217150%
2/4
75%
3/4
     0%
0/2
70%
7/10
Chesley r323 64-bit2163   92%
5.5/6
   65%
6.5/10
62%
5/8
Micah 1.0 64-bit216292%
5.5/6
 100%
6/6
      
Dorpsgek Cosmopolitan 2 64-bit2152      75%
3/4
62%
2.5/4
28%
5/18
Blitzkrieg rev337 64-bit2142    0%
0/2
62%
7.5/12
62%
2.5/4
75%
7.5/10
42%
7.5/18
Parrot 07.07.222136     80%
8/10
60%
6/10
45%
4.5/10
 
Barbarossa 0.4.0 64-bit2133     92%
11/12
79%
11/14
50%
7/14
61%
8.5/14
Tunguska 1.0 64-bit2129    75%
1.5/2
75%
1.5/2
62%
2.5/4
 80%
8/10
BigLion 2.23w2077      75%
3/4
55%
5.5/10
81%
6.5/8
Galjoen 0.36 64-bit2074     50%
1/2
 60%
6/10
 
Little Wing 0.6.0 64-bit2074  100%
2/2
    50%
4/8
 
Soldat III 0.178 64-bit2070       50%
5/10
70%
7/10
Cinnamon 2.0 64-bit2036      62%
2.5/4
 40%
4/10
Score color legend:
(Only pairs with at least 30 games)
0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100%

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Rating list
Testing profile
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Results table
Performance table
Score table
LOS table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents

Maximum size of cross-tables (from 2 to 100):
Limit crosstables to engines in Elo range: to
Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
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Reference rating list:
Recalibrate:
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  Recalibrate reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Created in 2005-2013 by CCRL team
Last games added on February 20, 2021